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The Laboratory for Advanced Semiconductor Epitaxy is located in the Microelectronics Research Center at the University of Texas at Austin. We are developing advanced materials and devices for electronics and optoelectronics. We are particularly interested in GaSb-based mid-infrared quantum well lasers, THz sources based on epitaxial metal/semiconductor nanocomposites, new plasmonic materials, low-noise III-V avalanche photodiodes, silicon-based electronics/optoelectronics, and sources/detectors for quantum information processing. Our secret weapon in this effort is the molecular beam epitaxy (MBE) crystal growth technique.

Recent Publications

Q. Lin, H. Karimi, K. Fang, K. Circir, J. Bai, E. Y. Wang, S. R. Bank, and J. C. Campbell, "Photon trapping with amorphous-Ge gratings for high-efficiency eSWIR AlInAsSb avalanche photodiodes," APL Photonics, vol. 11, Aug 2026. Digital object identifier
L. Gelczuk, Q. Meng, R. H. El-Jaroudi, J. Kopaczek, A. A. Dadey, R. C. White, A. McArthur, J. C. Campbell, M. A. Wistey, S. R. Bank, and R. Kudrawiec, "Experimental and theoretical studies on deep-level defects in n- and p-type BGaAs alloys," APL Materials, vol. 14, Jul 2026. Digital object identifier
A. Ware, J. LaMountain, C. White, S. R. Bank, E. Narimanov, D. Wasserman, and V. A. Podolskly, "Intrinsically nonlocal metamaterials," Nature Communications, vol. 17, no. 7952, Jun 2026. Digital object identifier
K. Circir, D. J. Herrera, J. A. McArthur, E. Y. Wang, T. Fatema, A. Beling, S. R. Bank, and J. C. Campbell, "Characterization of edge-coupled digital alloy AlInAsSb SPADs," Physics and Simulation of Optoelectronic Devices XXXIV, San Jose, Mar 2026.
K. Circir, E. Y. Wang, A. McArthur, D. Herrera, S. R. Bank, and J. C. Campbell, "Extended short-wavelength infrared AlInAsSb nBn photodetectors," Journal of Quantum Electronics, vol. 62, no. 1, Feb 2026. Digital object identifier
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Recent News

Congrats to Ashlee for defending her thesis!

Oct. 31, 2024
Congrats to Ashlee for defending her thesis!

Congrats to JAM for defending his thesis! Best of luck at NREL!

Oct. 24, 2024
Congrats to JAM for defending his thesis! Best of luck at NREL!

Congrats to Qian for defending her thesis!

Oct. 11, 2024
Congrats to Qian for defending her thesis!
Seth Bank

Seth R. Bank
Cockrell Family Chair in Engineering
Chandra Electrical & Computer Engineering

Email: sbank_at_ece.utexas.edu

CV: SRB_CV.pdf

Scholar: Profile

Offices:
2.206P MER (main office)
3.876 EER (teaching office)

Mailing address:
10100 Burnet Road, Bldg. #160
MER 2.606C, R9900
Austin, TX 78758